3 to 5.5 V, low-power, up to 400 kbs RS-232 drivers and receivers

Transcription

1 3 to 5.5 V, low-power, up to 400 kbs RS-232 drivers and receivers Datasheet - production data The ST3232B and ST3232C have two receivers and two drivers. The devices are guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. Typical applications are notebooks, subnotebooks and palmtop computers, batterypowered equipment, hand-held equipment, peripherals, and printers. Table 1: Device summary Order code Temp. range Package Packaging Features 300 µa supply current 300 kbps minimum guaranteed data rate 6 V/µs minimum guaranteed slew rate Meets EIA/TIA-232 specifications down to 3 V Available in SO16, SO16L, and TSSOP16 packages Description The ST3232B and ST3232C devices are 3 V powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements and high data-rate capabilities. These devices have a proprietary low dropout transmitter output stage providing true RS-232 performance from 3 to 5.5 V supplies. The devices require only four small 0.1 mf standard external capacitors for operation from a 3 V supply. ST3232CDR 0 to 70 C SO16 (tape and ST3232BDR -40 to 85 C reel) ST3232CWR 0 to 70 C SO16L (tape and ST3232BWR -40 to 85 C reel) ST3232CTR 0 to 70 C TSSOP16 (tape and ST3232BTR -40 to 85 C reel) 2500 parts per reel 1000 parts per reel 2500 parts per reel January 2016 DocID7454 Rev 12 1/18 This is information on a product in full production.

2 Contents ST3232B, ST3232C Contents 1 Pin configuration Absolute maximum ratings Electrical characteristics Application information Typical performance characteristics Package information SO16 package information SO16L package information TSSOP16 package information SO16 tape and reel package information SO16L tape and reel package information TSSOP16 tape and reel package information Revision history /18 DocID7454 Rev 12

3 Pin configuration 1 Pin configuration Figure 1: Pin connections Table 2: Pin description Pin n Symbol Name and function 1 C 1+ Positive terminal for the first charge pump capacitor 2 V+ Doubled voltage terminal 3 C 1- Negative terminal for the first charge pump capacitor 4 C 2+ Positive terminal for the second charge pump capacitor 5 C 2- Negative terminal for the second charge pump capacitor 6 V- Inverted voltage terminal 7 T2 OUT Second transmitter output voltage 8 R2 IN Second receiver input voltage 9 R2 OUT Second receiver output voltage 10 T2 IN Second transmitter input voltage 11 T1 IN First transmitter input voltage 12 R1 OUT First receiver output voltage 13 R1 IN First receiver input voltage 14 T1 OUT First transmitter output voltage 15 GND Ground 16 V CC Supply voltage DocID7454 Rev 12 3/18

4 Absolute maximum ratings ST3232B, ST3232C 2 Absolute maximum ratings Table 3: Absolute maximum ratings Symbol Parameter Value Unit V CC Supply voltage -0.3 to 6 V+ Doubled voltage terminal (V CC - 0.3) to 7 V- Inverted voltage terminal 0.3 to -7 V+ + V- 13 T IN Transmitter input voltage range -0.3 to 6 V R IN Receiver input voltage range ±25 T OUT Transmitter output voltage range ±13.2 R OUT Receiver output voltage range -0.3 to (V CC + 0.3) t SHORT Transmitter output short to gnd time Continuous T stg Storage temperature -65 to 150 C Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Externally applied V+ and V- can have a maximum magnitude of +7 V, but their absolute addition can not exceed 13 V. Running on internal charge pump, intrinsic self limitation allows exceeding those values without any damage. Startup voltage sequence (V CC, then V+, then V-) is critical, therefore it is not recommended to use this device using externally applied voltage to V+ and V-. 4/18 DocID7454 Rev 12

5 Electrical characteristics 3 Electrical characteristics Table 4: Electrical characteristics (C1 - C4 = 0.1 µf, VCC = 3 V to 5.5 V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C) Symbol Parameter Test conditions Min. Typ. Max. Unit I SUPPLY V CC power supply current No load, V CC = 3 V ± 10 %, T A = 25 C No load, V CC = 5 V ± 10 %, T A = 25 C 1 2 ma Table 5: Logic input (C1 - C4 = 0.1 µf, VCC = 3 V to 5.5 V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C) Symbol Parameter Test conditions Min. Typ. Max. Unit V TIL Input logic threshold low T-IN (1) 0.8 V TIH Input logic threshold high V CC = 3.3 V 2 V CC = 5 V 2.4 I IL Input leakage current T-IN ±0.01 ±1 µa Notes: (1) Transmitter input hysteresis is typically 250 mv. V Table 6: Transmitter (C1 - C4 = 0.1 µf tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C) Symbol Parameter Test conditions Min. Typ. Max. Unit V TOUT R TOUT Output voltage swing Transmitter output resistance All transmitter outputs are loaded with 3 kω to GND V CC = V+ = V- = 0 V, V OUT = ±2 V 300 ±5 ±5.4 V I TSC Output short circuit current V CC = 3 V or 5 V, V OUT = ±12 ± 60 ma 10 M Ω Table 7: Receiver (C1 - C4 = 0.1 µf tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C) Symbol Parameter Test conditions Min. Typ. Max. Unit V RIN Receiver input voltage operating range V RIL V RIH RS-232 Input threshold low RS-232 Input threshold high T A = 25 C, V CC = 3.3 V T A = 25 C, V CC = 5 V T A = 25 C, V CC = 3.3 V T A = 25 C, V CC = 5 V V RIHYS Input hysteresis 0.3 R RIN Input resistance T A = 25 C kω V ROL TTL/CMOS output voltage low I OUT = 1.6 ma 0.4 V ROH TTL/CMOS output voltage high I OUT = -1 ma V CC V CC V V DocID7454 Rev 12 5/18

6 Electrical characteristics ST3232B, ST3232C Table 8: Timing characteristics (C1 - C4 = 0.1 µf tested at 3.3 V ±10 %, VCC = 3 V to 5.5 V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C) Symbol Parameter Test conditions Min. Typ. Max. Unit D R t PHLR, t PLHR t PHLT - t THL t PHLR - t THR S RT Data transfer rate Propagation delay input to output Transmitter propagation delay difference Receiver propagation delay difference Transition slew rate Notes: (1) Transmitter skew is measured at the transmitter zero cross points R L = 3 kω, C L2 = 1000 pf one transmitter switching kbps R XIN = R XOUT, C L = 150 pf 0.2 µs See (1) 100 T A = 25 C, R L = 3 kω to 7 kω, V CC = 3.3 V measured from 3 V to -3 V or -3 V to 3 V, C L = 150 pf to 1000 pf T A = 25 C, R L = 3 kω to 7 kω, V CC = 3.3 V measured from 3 V to -3 V or -3 V to 3 V, C L = 150 pf to 2500 pf ns V/µs 6/18 DocID7454 Rev 12

7 Application information 4 Application information Figure 2: Application circuits Table 9: Capacitance value (µf) V CC C1 C2 C3 C4 Cbypass 3.0 to to DocID7454 Rev 12 7/18

8 Typical performance characteristics ST3232B, ST3232C 5 Typical performance characteristics Unless otherwise specified T J = 25 C Figure 3: Driver voltage transfer characteristics for transmitter inputs Figure 4: Driver voltage transfer characteristics for receiver inputs Figure 5: Output current vs output low voltage at VCC = 5.5 V Figure 6: Output current vs output low voltage at VCC = 3 V 8/18 DocID7454 Rev 12

9 Figure 7: Output current vs output high voltage at VCC = 5.5 V Typical performance characteristics Figure 8: Output current vs output high voltage at VCC = 3 V Figure 9: Receiver input resistance DocID7454 Rev 12 9/18

10 Package information ST3232B, ST3232C 6 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST trademark. 10/18 DocID7454 Rev 12

11 Package information 6.1 SO16 package information Figure 10: SO16 package outline Table 10: SO16 mechanical data Ref Dimensions Millimeters Inches Min. Typ. Max Min. Typ. Max. A a a b b C c D E e e F G L M S 8 8 DocID7454 Rev 12 11/18

12 Package information ST3232B, ST3232C 6.2 SO16L package information Figure 11: SO16L package outline Table 11: SO16L mechanical data Ref Dimensions Millimeters Inches Min. Typ. Max Min. Typ. Max. A A B C D E e H h L k ddd /18 DocID7454 Rev 12

13 Package information 6.3 TSSOP16 package information Figure 12: TSSOP16 package outline Table 12: TSSOP16 mechanical data Ref Dimensions Millimeters Inches Min Typ Max Min Typ Max A A A b c D E E e k L L aaa DocID7454 Rev 12 13/18

14 Package information ST3232B, ST3232C 6.4 SO16 tape and reel package information Figure 13: SO16 tape and reel package outline 1. Drawing not to scale Table 13: SO16 tape and reel mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A C D N T Ao Bo Ko Po P /18 DocID7454 Rev 12

15 Package information 6.5 SO16L tape and reel package information Figure 14: SO16L tape and reel package outline 1. Drawing not to scale Table 14: SO16L tape and reel mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A C D N T Ao Bo Ko Po P DocID7454 Rev 12 15/18

16 Package information ST3232B, ST3232C 6.6 TSSOP16 tape and reel package information Figure 15: TSSOP16 tape and reel package outline 1. Drawing not to scale Table 15: TSSOP16 tape and reel mechanical data Dimensions Ref Millimeters Inches Min. Typ. Max Min. Typ. Max. A C D N T Ao Bo Ko Po P /18 DocID7454 Rev 12

17 Revision history 7 Revision history Table 16: Document revision history Date Revision Changes 06-Sep Order codes has been updated and new template. 25-Oct Order codes has been updated. 21-Jan Added note on Table Feb Modified: Table 1 on page Jan Updated document layout Table 3: "Absolute maximum ratings": added T stg Updated titles of Figure 5, Figure 6, Figure 7, and Figure 8 Section 6.2: replaced SO16L package outline and mechanical data Section 6.3: removed A1 (typ: inches), updated E1 (max: mm and inches), added L1 and aaa. DocID7454 Rev 12 17/18

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